As those on the hackystat-svn-l list know, I just committed changes to update StackyHack and the sensor docbook to reflect the changed DependencyFinder API change from about a month ago. This was a side-effect of the Dependency SDT evolution, in which we carefully inspected the SDT code, took a more cursory glance over the sensor code, and of course totally forgot about the documentation :-) As I have been doing Sudoku lately, I am seeing all sorts of parallels. :-)
The good news is that the StackyHack example system revealed the presence of the problem, and once I looked at the sensor code it was quite obvious what was going on and how to fix it. Hopefully we'll get our act together better in future, but as long as we have a way to stumble across these problems somehow before the stable release goes out the door, I say we're OK. Cheers, Philip
